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About SCMP
Multiple ISG Routers with Multiple SCE Platforms via Load Balancing (NxISG – MxSCE)
Figure 14-4
balancing. This is the scenario required for a MGSCP deployment.
Figure 14-4
Multiple ISG Routers with Multiple SCE Platforms via Load Balancing
Mega Pop
BB-1
(GSR)
OC-192
EX-1
OC-48
(GSR)
BB-2
(GSR)
SBC-IS Mini Pop
DB-1
(GSR/7500)
DIST-1
(6500)
PE-1
BRAS
(GSR)
This scenario includes several SCE platforms connected to the 7600/6500 switch. For efficient control
of subscriber flows, the same SCE platform must process both directions of each subscriber flow, since
the SCE platform keeps the subscriber context. The 7600/6500 switch to which the SCE platforms are
connected acts as a dispatching element, distributing subscriber flows between SCE platforms and
guaranteeing that all flows of a specific subscriber will pass through the same SCE platform.
This scenario assumes that one (or sometimes more) of the devices in the cluster is redundant.
Please note the following:
•
•
Cisco SCE 2000 and SCE 1000 Software Configuration Guide
14-6
illustrates a deployment using multiple ISG routers with multiple SCE platforms via load
SBC IS core network
OC-192
Core-1
(GSR)
POS
Core-3
(GSR)
DB-2
(GSR/7500)
DIST-2
(6500)
SCE
DED-1
(GSR/7500)
An ISG device cannot push sessions to two SCE platforms at the same time.
You must configure multiple SCE platforms with load-balancing (MGSCP) to work in pull
integration mode.
Core-1
(GSR)
Core-2(GSR)
OC-192
SBC-IS Mini Pop
DB-1
(GSR/7500)
DIST-1
(6500)
PE-1
(GSR)
Chapter 14
BB-2
(GSR)
OC-48
POS
BB-1
OC-48
(GSR)
POS
DB-2
(GSR/7500)
DIST-2
(6500)
BRAS
DED-1
(GSR/7500)
Managing the SCMP
PE-1
(GSR)
SCE
OL-7827-12
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